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Spin-disordered superfluid state for spin-1 bosons with fractional spin and statistics | | W. Vincent Liu
; Xiao-Gang Wen
; | | Date: |
11 Dec 2001 | | Subject: | Strongly Correlated Electrons; Statistical Mechanics | cond-mat.str-el cond-mat.stat-mech | | Affiliation: | MIT | | Abstract: | We study a strongly correlated spin-1 Bose gas in 2D space by using the projective construction. A spin-disordered superfluid state is constructed and proposed as a candidate competing with the conventional polar condensate when interaction is antiferromagnetic. This novel state has a non-trivial topological order whose low energy excitations carry fractional spin, charge, and statistics. The spin excitations become gapless only at the edge and are described by level-1 SU(2) Kac-Moody algebra. The edge state is identical to the edge state of the chiral spin liquid or the right moving sector of spin-1/2 chain. | | Source: | arXiv, cond-mat/0201187 | | Services: | Forum | Review | PDF | Favorites | |
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